bile duct The liver produces bile, a greenish yellow, thick, sticky fluid. Bile aids digestion by making cholesterol, fats, and fat-soluble vitamins easier to absorb from the intestine. Bile also helps eliminate certain waste products (mainly bilirubin and excess cholesterol) and by-products of drugs from the body.The biliary tract consists of small tubes (ducts) that carry bile from the liver to the gall.. 2012. 9. 7. 이전 1 다음